High-pressure valve.



UNITED STATES BTC.

JOSEPH LANGSDORFF, or JERSEY CITY, NEW JERSEY, AND LOUIS KRUG, or NEWYORK, N. Y.

HIGH-PRESSURE VALVE.

'Specification of tetters Patent.

Patented July 29, 1913.

Application filed November 1, 1912. Serial No. *728,999.

To aZZ whom it may concem:

Be it known that we, J OSEPH LANGsDoRrr, a citizen of the United States,and a resident of Jersey City, in the county of Hudson and State of New'Jersey, and LoUIs KRUG, a citizen of the United States, and a residentof the city of New York, lVindfield, borough of Queens, in the count-yof Queens and State of New York, have invented a new and ImprovedHigh-Pressure Valve, of which the following is a full, clear, and exactdescription.

This invention comprehends a high pressure valve of new and improveddesign.

The principal object of the invention is to provide a valve which willbe'maintained in closed position through the aid of a spring, assistedby the pressure of the fluid passing through the valve, opening of thevalve being brought about through compression of the spring.

In the accompanying sheet of drawings we have shown the .structure ofthe valve through the medium of a vertical sectional View, it beingobvious, however, that many changes may be made in the size and shapewithout departing from the spirit of the invention as set forth.

The body member 1 is provided with a continuous aXial bore or passagewayextending therethrough; the intermediate portion 2 of this bore isthreaded for a desirable length and communicates with the enlargedcounter-bore 3 at one end, also threaded in its interior as at 4 inorder to receive the lower threaded end of a cap 5 having an opening 6eXtending therethrough; beneath the-said intermediate portion 2 of thebore is the valve seat 7, and below the seat is' a counter-bored portion8 threaded at its lower end in order to receive the removable cap 9having a pocket 10 therein, the outer open end of the cap being squaredas at 11 in order to provide for convenient insertion and removal; inorder to prevent leakage a Washer 12 of any suitable material ispreferably interposed between the lower end of the body portion and thecap. Within the counter-bored portion 8 the valve 13 is removablymounted, said valve being provided with an upwardly eXtending stem 141extending into the intermediate portion 2 of the bore, the under portionof the valve being provided with an ofiset 15, the helical spring 16engaging the under side of the v valve and surrounding the said otfset,the

pressure of the spring maintaining the valve closed against the valveseat when in closed position, as shown in the drawings; the springextends into the pocket 10 in the lower removable cap 9.

Extending through the opening 6 in the upper cap 5 is a spindle 17carrying a handle 18 at its upper end, the lower end portion of thespindle being threaded as at 19 and engaging the threaded intermediateportion 2 of the bore, the said lower end being further provided with abore 20 in which the upper end portion of the stem 14: of the valve isreceived;

Carried by the body member 1 is an arm 21 having an opening 22 extendingtherethrough which communicates with the said intermediate portion 2 ofthe bore, this arm being adapted to' receive a tube or hose whereby thefluid passed through the valve is conducted away; a second arm 23 isalso provided on the body member 1, there being an opening 24 extendingtherethrough, this opening communicating with the counterbored portion 8of the body member beneath the valve seat 7 and the valve 13 through thepassageway 25; the end of this arm is adapted to be connected to thesource of supply. The bore of the body is contracted below or beyond theintersection with the outlet 22, to provide the desired formation forthe valve seat 7.

As shown in the drawing, the pressure of the spring 16 is maintainingthe valve closed against the valve seat 7 so that the passage of fluidthrough the valve is prevented, the pressure of the said fluid actingagainst the under portion of the valve and assisting in firmly seatingit in position. The handle 18 and the spindle 17 are availed of inopening and closing of the valve in the following manner: As the handleis turned in one direction the threads on the spindle cause it toadvance into the body member, and the end wall of the bore 20 in thisspindle engages the end of the stem 14 extending upwardly from the valve13, moving the said valve downwardly against the pressure of the spring16 and permitting the passage of fluid through the opening in the arm 23into the opening in the arm 21 through the passageway 25; in order toclose the valve, or, rather, in order to permit the said spring to closethe valve, the handle 18 is turnedin the opposite direction, after whichthe bottom wall of the bore 20 moves away from the end of the spindle17, the pressure of the spring then keeping the valve closely 'inengagement with the seat.

The structure described sets forth a valve in which the handle takes nopart in maintaining the valve closed; the spring perforns this function,and the positioning of the passageway 25 below the valve permits thepressure of the fluid to materially assist the spring.

The valve is adapted for uses and materials which are widely different,it being apparent that the relative strength of the various portionsthereof may be varied in order to produce a mechanically successfuldevice.

Having thus described our invention, what we claim as new and desiretosecure by Letters Patent is The herein-described high pressure valve,comprising a valve body, lateral arms extendng froni the body betweenthe ends thereot', one of which arms has an axial inlet passage and theother of which has an aXial outlet passage, the body having a boreintersected by and communicating directly with the said outlet passage,the bore being contracted beyond the point of intersection with theoutlet passage, and counterbored beyond the contracted portion, thecounterbore forning a cylindrical housing integral with the body, therebeing an outwardly facing valve seat at the inner end of the saidhousing, and a port leading from the nlet passage to the interior of thehousing at a point removed from the valve seat, a removable closure forthe outer end of the cylindrical housing, a valve disposed in the saidhousing and movable aXially therein between the valve seat and the portfrom the inlet, a helical compression spring abutting at its' inner endagainst the valve, and at its outer end against the mentioned closure,the valve having an axially disposedofi'set within the spring, andhaving a stern at the opposite side extending through the passagebetween the counter-bore and outlet passage and across the latter intothe bore of the body, and a valve spindle in said bore movable axiallyther-ein into or out of engagement with the valve stem, the said spindleternnating short of the outlet passage.

In testmony whereof I, JosEPH LANGS- DORFF, have signed thisspecification in the presence of two subscribing witnesses.

J OSEPH LANGSDORFF.

WVitnesses:

OTTO KAsEL, EDWARD STEFTEN.

In testmony whereof I, LOUIS KRUG, have signed this specification in thepresence of two subscribng witnesses.

LOUIS KRUG.

copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. C."

